added check for setParentingRules to addInterest

direct/src/distributed/DistributedObject.py

@@ -128,6 +128,9 @@ class DistributedObject(DistributedObjectBase):
         _getAutoInterests = None
         return list(autoInterests)
 
+    def hasParentingRules(self):
+        return self.dclass.getFieldByName('setParentingRules') != None
+
     def setNeverDisable(self, bool):
         assert bool == 1 or bool == 0
         self.neverDisable = bool

direct/src/distributed/DoInterestManager.py

@@ -135,6 +135,18 @@ class DoInterestManager(DirectObject.DirectObject):
                 "addInterest: addingInterests on delete: %s" % (handle))
             return
 
+        # make sure we've got parenting rules set in the DC
+        if parentId not in (self.getGameDoId(),):
+            parent = self.getDo(parentId)
+            if not parent:
+                DoInterestManager.notify.error(
+                    'addInterest: attempting to add interest under unknown object %s' % parentId)
+            else:
+                if not parent.hasParentingRules():
+                    DoInterestManager.notify.error(
+                        'addInterest: no setParentingRules defined in the DC for object %s (%s)'
+                        '' % (parentId, parent.__class__.__name__))
+
         if auto:
             scopeId = 0
             event = None